Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
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54 823
Log-cabin type facade
The invention relates to a log-cabin type facade according to a log-cabin type
facade for
cladding walls in internal and external areas with at least one elongated
contoured element for
cladding a wall surface, which are arranged over each other, with corner-
forming elements
that are assigned to the contoured elements and are arranged in the form of
stumps reaching
over each other in a cross bond, whereby the contoured elements and the corner-
forming
elements jointly take on the appearance of a massive blockhouse-type building
mode.
From US-PS 5 638 649, a log-cabin type facade for cladding external walls is
known that
consists of several elongated contoured elements for cladding the surface of
the wall that can
be arranged over each other, and comprises corner-forming elements that are
assigned to the
side contours and can be arranged as trunks stacked over each other in a cross-
bond in order
to form an external corner. The contoured elements and corner-forming elements
provide the
appearance of a massive blockhouse-type building mode.
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Designing this log-cabin type facade requires, provided identical contoured
elements are used
for cladding the wall sections for the formation of a external corner, the
provision of corner-
forming elements with a different design to erect the log-cabin type facade.
Accordingly, right
and left corner-forming elements are required in order to generate a bond that
is to display no
interfaces to an observer and, being an imitation, comes very close to a real
log-cabin type
facade. Because of the design of the different corner formations, the erection
of a facade of
this type is resource-consuming. Moreover, the contoured elements are
disadvantageous in
that they do not reside flush over each other after extended use, but rather
they spread at the
points of contact.
A facade cladding for the formation of a blockhouse-type external facade is
also known from
US 6 199 332 B 1, in which identically designed contoured elements are
provided at the wall
surfaces and different corner-fon ning elements are provided in the form of
pre-milled wood
stumps for a right and a left attachment. This embodiment is associated with
the same
disadvantages as the log-cabin type facade described before. A similar facade
cladding is
known from US 5 586 422 A.
The invention is based on the object to propose a log-cabin type facade for
walls in internal
and external areas that, due to the simple design of the elements, facilitates
rapid production
and erection of the facade and facilitates assembly of the elements into a
facade independent
of their arrangement and orientation.
This object is met according to the invention comprising a log-cabin type
facade for cladding
walls in internal and external areas with at least one elongated contoured
element for cladding
a wall surface, which are arranged over each other, with corner-forming
elements that are
assigned to the contoured elements and are arranged in the form of stumps
reaching over each
other in a cross bond, whereby the contoured elements and the corner-forming
elements
jointly take on the appearance of a massive blockhouse-type building mode, the
contoured
elements are designed to be mirror-symmetrical in their longitudinal extension
and comprise
near their front sides a transverse recess for one of the contoured element
positioned opposite
from them in the cross bond to connect each other, the corner-forming elements
are designed
in the form of round wood stumps with a cut surface that forms an end surface
and comprise,
on the opposite side, a first planar attachment surface and, adjacent to this
and adapted to an
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external side of the crossing contoured element and corner-forming element a
second
attachment surface; and the contoured elements and the corner-forming elements
provide a
building kit for designing a facade for an external corner and an internal
corner.
The design of the facade according to the invention is advantageous in that
the elongated
contoured elements are designed to be identical such that they can be used
equally well on an
internal wall and on an external wall and have the same attachments both on
their right and on
their left end. These elongated contoured elements can be used for the
production of an
internal corner as well as an external corner in internal and external areas.
Moreover, the
facade according to the invention is advantageous in that the corner-forming
elements are also
designed to be identical and can be used to form a cross bond on a left or
right end of a tree
trunk that is to be imitated independent of their arrangement.
This provides for simple and cost-efficient production of a facade. In
addition, a simple kit
consisting of two elements that allow an entire facade to be erected is
provided. Contoured
elements and corner-forming elements of this type can be provided in the form
of a kit that
facilitates simple erection by both an expert and a layman. Moreover, these
simple geometric
shapes of the contoured element and corner-forming element provide much
freedom in the
design.
Arranging a transverse recess near the front sides of the contoured elements
for cross bonding
of an opposite contour also allows an external corner and an internal corner
to be produced by
means of a contoured element.
According to an advantageous embodiment of the invention the contoured
elements and
corner-forming elements are provided such as to be connectable by means of
plug-in
connection elements, preferably bolts, in particular made of wood or wooden
dowels. This
can provide for simple assembly at high stability that is facilitated by
simple plugging-in or
putting together.
According to an advantageous embodiment the invention provides for at least
two plug-in
connection elements to be provided between the contoured elements and corner-
forming
elements at each site of connection. By this means, a stable arrangement and
attachment can
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be effected. Simultaneously, the presence of at least two connection elements
provides for
securing against torsion.
Advantageously, the invention provides for at least two bore holes for
receiving the plug-in
elements to be provided at each site of connection of the contoured element.
Accordingly, the
individual elements for production of the facade are pre-made such that they
can be put
together simply without further processing.
According to a further advantageous embodiment, the invention provides for the
corner
connection elements to comprise at least two bore holes for receiving the plug-
in connection
elements at a left and a right section of an attachment surface. This allows
for the corner
connection element as such to be universally enabled for the arrangement of a
left or right
side or for production of a termination in X or Y direction of the cross bond.
The plug-in
connection elements are provided either on the at least two left or right bore
holes of the
attachment surface.
According to a preferred embodiment, the contoured elements are designed to
have a semi-
circular cross-section that comprises a circular external side imitating a
tree trunk and an
internal side with recesses serving as an abutment surface. The recesses
provided on the
internal side can, for example, be W- or V-shaped, triangular-shaped or of a
similar shape.
They are advantageous in that, provided natural wood is used as contoured
element, splitting
of the wood during the drying process is prevented. At the same time, utility
lines can be
inserted into these recesses, for example in order to supply energy to a wall
lamp or similar to
be attached to the facade. It is self-evident that any other application is
also feasible.
According to a further advantageous embodiment, the contoured element
comprises in an
upper section thereof and along its longitudinal extension a tongue and, on
the opposite
bottom side, a groove designed to be complementary in shape. This facilitates
that secure
engagement of contoured elements arranged over each other for cladding of a
wall surface is
facilitated. The design of the groove and tongue also facilitates that
bursting or waviness of
individual sections of a contoured element upon extended use is prevented. In
addition, this
can produce a sealed arrangement.
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It is advantageous to provide a fin surface on a bottom side of the contoured
element between
an external side and the groove, which fin surface is designed such that
another contoured
element can be placed thereon. This fin surface facilitates, on the one hand,
that the design of
the tongue of the contoured element arranged underneath it is completely
covered.
Simultaneously, the massive log cabin building mode character is enhanced. On
the other
hand, the fin surface facilitates that the penetration of moisture is
prevented even upon driving
rain or high wind velocities.
According to a preferred embodiment, the contoured element - as seen in a side
view -
comprises at each front side a quarter-circle-shaped milled recess that
extends from a lower
edge to the longitudinal middle plane and serves as second attachment surface
and verges into
a planar first attachment surface that extends to the upper end. This
geometric design of the
front side facilitates identical conditions for the sites of connection points
to exist both in the
one and in the other direction of assembly. Moreover, this design is
advantageous in that a
compact and sealed arrangement in the cross bond of trunks reaching over each
other can be
imitated. This contoured element is used in combination with the intermittent
part and also
forms the basis for a utilization without intermittent parts.
For utilization without intermittent part, the contoured element
advantageously comprises
near the first attachment surface and in a second attachment surface a contour
that extends in
transverse direction and is engaged by the tongue of the contoured element
that is arranged in
the cross bond and resides underneath. This facilitates that an attachment
surface of the
corner-forming element directly engages the first attachment surface of the
contoured
element. Simultaneously, this facilitates that, upon forming an internal
corner, additional
fixation is provided by the contoured elements themselves.
According to a further advantageous embodiment of the invention, the corner-
forming
elements, which consist of a round body, comprise at a bottom side a concave
surface whose
radius of curvature corresponds to the radius of the corner-forming element.
This allows
corner-forming elements to be stacked on top of each other such as to be flush
and the optical
impression is that of a massive log cabin building mode.
The corner-forming elements advantageously comprise at a front side a planar
cut side that
corresponds to the end surface of a trunk and, opposite to this, a first and
second attachment
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surface that are provided analogous to the sites of connection of the
contoured elements. This
provides a simple and structural design and allows the contoured elements and
corner-forming
elements to be erected and put together easily.
According to a further advantageous embodiment of the invention, the contoured
elements
and the corner-forming elements are provided to be made of wood. For external
areas, it is
preferred to use the wood of larch trees, Douglas firs. For internal areas or
sauna construction,
the wood of cedars, northern firs, hemlock firs, pine trees, oak trees or
similar. Alternatively,
the invention can provided for the use of wood imitations or, for example,
plastic contoured
elements with laminated wood or other basic structures onto which a laminate
or an optical
structure corresponding to wood is sprayed, glued or attached by similar
means.
Further advantageous developments and embodiments of the invention are evident
from the
further claims.
The invention as well as further advantageous embodiments and developments
thereof shall
be described in more detail and illustrated in the following by means of the
examples shown
in the drawings. The features that are evident from the description and the
drawings can be
used individually or several thereof in any combination according to the
invention. In the
figures:
Figure 1 shows a perspective view of a log-cabin type facade according to the
invention
for cladding an external corner;
Figure 2a shows a perspective view of a contoured element for the facade
according to
figure 1;
Figure 2b shows a schematic sectional view of the contoured element according
to figure
2a;
Figure 2c shows a schematic lateral view of the contoured element according to
figure
2a;
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Figure 3 shows a perspective view of a corner-forming element for a facade
according
to figure 1;
Figure 4 shows a perspective view of an intermittent part for a facade
according to
figure 1;
Figure 5 shows a perspective view of a further log-cabin type facade according
to the
invention;
Figure 6 shows a perspective view of a contoured element for a facade
according to
figure 5; and
Figure 7 shows a perspective view of a corner-forming element for a facade
according
to figure 5.
Figure 1 shows a perspective view of a log-cabin type facade 11 according to
the invention.
This partly exploded view shows the joint action of elongated contoured
elements 12 and
intermittent parts 14 arranged thereon, which are assembled jointly with
corner-forming
elements 16 in order to form an external corner. The facade 11 can be provided
both for
internal areas and for external areas in order to clad a wall that is not
shown in more detail.
The assembly of the contoured elements 12, intermittent parts 14, and corner
formations 16
shall be illustrated in more detail following the description of the
individual elements.
Figure 2a shows the contoured element 12 for a facade 11 in a perspective
view. The
elongated contoured element 12 is designed in the form of a semi-circular
contour as is shown
in more detail in the sectional view according to figure 2b. The contoured
element 12 is
designed to be mirror-symmetrical about the middle axis 19 and comprises on
each of its front
sides a first planar attachment surface 21 that verges into a second
attachment surface 22 that
is formed by a quarter-circle-shaped milled recess. A tongue 24 is designed to
reside at an
upper section 23 of the contoured element 12 over the entire length in
longitudinal extension
of the contoured element 12. This tongue 24 is positioned at a distance from a
back-side
attachment surface 26. A groove 28 that is complementary in shape to tongue 24
is designed
to reside at a bottom side of the contoured element 12. This groove 28 is
staggered by the
same distance with respect to an attachment surface 26 as the tongue 24 such
that when the
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contoured elements 12 are stacked over each other secure engagement of the
groove 28 by the
tongue 24 is facilitated.
The contoured element 12 comprises recesses 29 that originate on the
attachment surface 26.
According to figure 2b, for example three recesses are provided, whereby the
number and size
of these recesses can be selected freely. Opposite from the attachment surface
26, an external
side 31 is designed to reside that is designed to be nearly semi-circular in
shape and ends on a
lower section at a lower edge 32. From this edge 32 extends a fin surface 33
that inclines
towards and to the groove 28. This fin surface advantageously has a concave
surface whose
radius of curvature corresponds to that of the external side 31. This fin
surface 23 abuts flush
on a contoured element 12 in the assembled state that is arranged below it and
covers the
groove 28 as well as attachment elements that are not shown in more detail,
for example nails,
that can be introduced in bore holes 37 (figure 2c) in a transitional area 36.
These bore holes
37 extend diagonally downward to the attachment surface 26 such that the
contoured element
12 can be attached to the wall and the attachment is not visible.
Accordingly, the contoured element 12 can be attached to the wall in
transitional area 36. A
contoured element 12 residing above it surrounds the tongue 24 by means of the
groove 28,
whereby a holding section 38 reaches behind the tongue 24 such that firm
abutment of the
lower section of the contoured element 12 residing on top to the contoured
element 12
residing on the bottom is provided in this area. As before, fixation to the
wall by attachment
means is provided at the upper section of the contoured element 12 near the
tongue 24.
Accordingly, a secure attachment of the contoured element 12 can be provided
that also meets
the requirements of load due to wind pressure.
Two bore holes 41 are made in the first attachment surface 21. These bore
holes 41 serve for
receiving plug-in connection elements 43 (figure 1). If natural wood is used
for the log-cabin
type facade, these plug-in connection elements 43 are provided in the form of
so-called
wooden dowels that can be plugged-in, pressed, if applicable, and/or glued in
addition.
Figure 3 shows the corner-forming element 16 in more detail. The corner-
forming element 16
is made from a circular body, preferably a round wood stump, and comprises, on
its back side,
a planar cut surface 46 that is designed like the end surface of a trunk. A
first attachment
surface 47 is designed to reside opposite from this. This attachment surface
47 is planar and
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comprises a semi-circular area. Adjacent to this, there is a second attachment
surface 48 that
is designed to be a quarter-circle-shaped milled recess as seen in the side
view of the corner-
forming element 16. This attachment surface 48 serves for abutment on the
imitated trunk
positioned underneath that is staggered by 90 in the cross bond.
A concave surface 49 is provided on a bottom side of the corner-forming
element and has a
radius of curvature that corresponds to the radius of the stump of the corner
thus formed.
A right and a left pair of bore holes 51 are provided on the first attachment
surface 47. This
facilitates the sue of the corner-forming element 16 as left and also as right
terminating
element.
Figure 4 shows a perspective view of the intermittent part 14. The
intermittent part 14
comprises an attachment surface 56 that is preferably designed to be congruent
to the first
attachment surface 21 of the contoured element 12. At the lower end of the
intermittent part
14, a concave surface 57 is provided whose radius of curvature corresponds to
the radius of
the corner-forming element 16. This surface 57 verges directly into the second
attachment
surface 22 when the intermittent part 14 is positioned with respect to one
front side of the
contoured element 12 to form the contour.
The intermittent part 14 advantageously comprises through bore holes 58 such
that the plug-in
connection elements 43 fully reach through the intermittent part 14 and are
designed to reside
on the right and left side for receiving the contoured element 12 and the
corner-forming
element 16.
The facade 11 according to figure 1 is built-up on a base 61. One contoured
element 12, one
intermittent part 14 attached thereto, and one corner-forming element 16 are
arranged in one
direction of space. Subsequently, one contoured element 12', intermittent
element 14', and a
corner-forming element that is not shown in more detail are assembled in a
second direction
of space and placed on a base 61 in the further direction of space. The corner-
forming element
for the second direction of space fully covers the intermittent part 14 such
that this
intermittent part 14 is not visible when the facade is completed. The build-up
of the log-cabin
type facade in a cross bond then proceeds alternating in the directions of
space such that the
individual elements can engage and fix each other.
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The invention also facilitates that firstly the contoured elements 12 and 12'
are arranged and
then the intermittent parts 14, 14' are attached by means of the plug-in
connection elements 43
either individually or jointly with the corner-forming elements 16, 16'.
Figure 5 shows a further alternative design of the log-cabin type facade 11
according to the
invention. This facade 11 differs from the facade shown in figure 1 in that
contoured elements
12 and corner-forming elements 16 that are positioned with respect to each
other by means of
plug-in connection elements 43 are used to produce this facade. For this
purpose, the
contoured element 12, shown in a perspective view in figure 6, is modified as
compared to the
contoured element 12 shown in figure 2 and comprises in the second attachment
surface 22
near the first attachment surface 21 a transverse recess 66. This recess
corresponds to the
groove 24 and a shoulder 67 that is designed to reside in the upper area of
the contoured
element 12. This transverse recess 66 facilitates simple arrangement of the
contoured
elements 12 with respect to each other for the design of an internal corner
69. The groove 24
of the contoured element 12 engages the recess 66 of the contoured element
that is positioned
above it and forms a fixation.
The corner-forming element 16 according to figure 7 for the facade 11
according to the
invention according to figure 5 differs from the corner-forming element 16
according to
figure 3 in that a recess 66 corresponds to that of the contoured element 12
according to figure
6 is provided in the second attachment surface 48. This facilitates flush
abutment of the first
attachment surface 47 of the corner-forming element 16 on the first planar
attachment surface
21 of the contoured element 12 and dispenses with the need to mill the nut 24
in the crossing
area of the contoured elements 12 and/or in the area of the outer end of the
contoured
elements 12.
The assembly of the facade 11 according to figure 5 proceeds as follows:
Prior to using the contoured element 12 for assembly, the corner-forming
element 16 is
attached to the contoured element 12 and the entire structure is placed on the
contoured
element 12 residing underneath. Then the milled recess 66 engages the tongue
24 of the
contoured element 12 that is positioned transverse-underneath and is staggered
by 90 ,
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preferably over half of the length of the corner-forming element 16. This
provides for bracing
of the corner.
Alternatively, the designs of the corner - as seen in the top view - can be
provided to deviate
from a 90 angle. The transverse milled recesses 66 are then adjusted
accordingly to the given
angle.
The facade 11 according to the invention according to figures 1 to 5 is
advantageous in that a
building kit with elements is designed that can be used equally well for a
left and for a right
orientation or side. This simplifies the assembly significantly. This
facilitates a facade that
corresponds to the appearance of a log-cabin type facade.
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